 Is there a quick way to check the rear wheel bearings? |
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| SirAndy |
  Aug 11 2009, 11:41 AM
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Resident German  Group: Admin Posts: 41,681 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California  |
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| jcd914 |
Aug 13 2009, 01:08 PM
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#2
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Advanced Member Group: Members Posts: 2,081 Joined: 7-February 08 From: Sacramento, CA Member No.: 8,684 Region Association: Northern California |
QUOTE(SirAndy @ Aug 13 2009, 10:41 AM)  Do you have a limited slip diff? Porsche LSD without the proper gear oil or additive can be noisy. When you turn to load the suspension one side or the other you also force the diff to work. That said, your description does sound like wheel bearings to me and I suspect you put some hefty side loads on the rear suspension. If you can put it up on a rack and run it in gear and listen with a stethoscope you will probably find 1 side louder that the other. This takes at least 2 people, 1 in the driver seat a 2nd to listen, if you have a 3rd to watch for safety hazards, could save you from lifting you head into a hot header or such. Of course up on a lift changes the load on the bearings and they maybe quiet the. You will also get a lot of other noise and vibration so it can be a challenge to sort out. Spin up the wheels and then put in neutral and shut off the engine and listen as the wheels coast down. I know this does not count as an easy method and it does not even work all the time but it is something you can do short of replacing both rear bearings. Good Luck Jim |
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Posts in this topic
SirAndy Is there a quick way to check the rear wheel bearings? Aug 11 2009, 11:41 AM
Dr. Roger
Is there a quick way to check the rear wheel bear... Aug 11 2009, 11:59 AM mikez Do da jiggle.... Aug 11 2009, 12:04 PM puff adder What about regreasing the rear wheel bearings?
... Aug 11 2009, 12:18 PM
underthetire
What about regreasing the rear wheel bearings?
... Aug 11 2009, 12:29 PM 9146986 Jack up the car, do the jiggle as above. You can ... Aug 11 2009, 03:37 PM URY914 Simple test....
No noise = good
Noise = bad Aug 11 2009, 03:49 PM turnaround89 wouldn't the bearing cover stop the jiggle? Aug 11 2009, 04:27 PM SLITS
wouldn't the bearing cover stop the jiggle?
... Aug 11 2009, 05:28 PM charliew I wasn't aware the 914 had rear wheel bearings... Aug 11 2009, 05:32 PM davep
I wasn't aware the 914 had rear wheel bearing... Aug 11 2009, 06:02 PM Eric_Shea The "quick" way when I was tech'ing ... Aug 11 2009, 05:55 PM SirAndy
The "quick" way when I was tech'ing... Aug 12 2009, 12:27 AM r_towle remove the bearing....it will be bad then.
Rich Aug 11 2009, 06:01 PM charliew The 914 has a double row rear HUB/AXLE bearing. Th... Aug 11 2009, 06:07 PM URY914 :D
Bad bearing race: Aug 11 2009, 06:37 PM type2man A good way to test the bearings is to speed up to ... Aug 11 2009, 07:17 PM charliew Have you tried putting it in neutral and coasting ... Aug 13 2009, 12:12 AM SirAndy
Have you tried putting it in neutral and coasting... Aug 13 2009, 11:41 AM yeahmag Andy,
Have you ever changed out the rear bearings... Aug 13 2009, 01:49 PM Phoenix 914-6GT
Andy,
Have you ever changed out the rear bearing... Aug 13 2009, 01:56 PM SirAndy No LSD.
We installed new bearings at the same tim... Aug 13 2009, 02:05 PM McMark I suppose it could be a defective bearing? :confu... Aug 13 2009, 03:25 PM yeahmag I second the running it on a lift. I thought I had... Aug 13 2009, 04:00 PM Nozzle I had my rear bearings pass the wiggle test on a l... Aug 13 2009, 07:28 PM r_towle There is an idea
remove wheel, rotor, caliper and ... Aug 13 2009, 07:30 PM SirAndy
There is an idea
remove wheel, rotor, caliper and... Aug 13 2009, 07:36 PM r_towle funny....I KNEW you would say that...
Seems like ... Aug 13 2009, 07:42 PM DBCooper You'll probably only need to remove the calipe... Aug 14 2009, 08:02 AM |
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